Xiaomi’s MIUI or HyperOS system is a powerful tool that, when set up correctly, can run faster, more stable and more cost-effectively. However, many users experience brakes, overheating or rapid battery discharge after a few months of use, most often due to the incorrect optimization of the software part, rather than the hardware.
In this article, we’ll break down unique optimization techniques that go beyond standard tips like “clean up cache,” and learn how to disable hidden system processes, set up application autoloads, optimize backgrounds, and even change core settings for advanced users. All of the guidelines are tested on current firmware from 2026 and are suitable for most devices, from budget Redmi to flagship Xiaomi 14.
1. Diagnostics of the current state of the system
Before you start optimizing, you need to understand what exactly is slowing your device. MIUI and HyperOS have built-in analysis tools, but they are often hidden from the user.
Open Settings → About Phone → All Specifications → System Diagnostics (on some models, the path may be different).
- 📊 CPU loading – if the value is consistently above 30% in idle, there are background processes that load the system.
- 🔋 Battery consumption – applications that consume more than 10% of the charge in the background need to be optimized.
- 🗃️ Memory – if less than 1 GB of RAM is free, the system begins to slow down.
- 🌡️ Temperature critical for Snapdragon: 45°C in simple, for MediaTek - 50°C.
For a deeper analysis, use third-party utilities like DevCheck or CPU Monitor to show you which processes are loading the system and help identify thermal throttling.
⚠️ Note: If the processor temperature exceeds 55°C in normal use (social networks, instant messengers), the problem may be thermal paste or cooling, in which case the optimization of the software will not help - physical repair is required.
System Cleanup: What Can Be Removed Without Risk
Many SEOs advise you to delete everything, but this can cause failures, and we have compiled a list of safe elements for removing that will not affect the stability of the system:
| Type of data | How to clean up | The effect |
|---|---|---|
| Cash app. | Settings → Applications → Select the application → Storage → Clear the cache | Frees up to 1-3 GB, speeds up application launches |
| Data from Mi Video and Mi Music | Delete via Settings → Applications → Music / Video → Storage → Delete Data | Frees up to 500MB if you don’t use standard players |
| Logs and dumps (/sdcard/MIUI/debug_log) | Delete via file manager (root rights or access to hidden folders required) | Releases up to 2 GB if not cleaned for a long time |
| Residual files of remote applications | Use SD Maid or Files by Google to search for junk | Releases 300-800MB |
Pay special attention to the folder /sdcard/MIUI/screen_recorder — It stores all the screen recordings, even if you didn't save them. 5 GB!
Remove the cache of all applications|Check the folder. screen_recorder|Clear the Mi data Video/Mi Music|Remove logs from debug_log (if there is access)|Check "Other Files" in the vault-->
3. Optimization of autoboot and background processes
One of the main reasons for the brakes is uncontrolled application autoload. MIUI/HyperOS has a hidden autorun control menu, but it works unintuitively.
To limit background activity:
- Go to Settings → Applications → Application Management → Autorun.
- Turn off auto-run for all applications except system (Phone, Messages, Settings).
- For individual applications (e.g. instant messengers), set up Battery → Battery Optimization → No restrictions, but turn off background activity in the settings of the app itself.
For advanced users, there is a way to disable hidden system processes through ADB:
adb shell pm uninstall -k --user 0 com.miui.analytics
adb shell pm uninstall -k --user 0 com.xiaomi.midrop
adb shell pm uninstall -k --user 0 com.miui.cloudservice⚠️ Note: Removing system packages through ADB This can cause some functions to fail (e.g. Mi Cloud or Quick Share) and back up before executing commands!
💡
If notifications from messengers stopped coming after shutting down the autoboot, add them to the exceptions in the battery settings (Settings → Battery → Battery Optimization → Select the application → Without restrictions).
4. Performance setting: Hidden MIUI options
MIUI and HyperOS have hidden settings that allow you to manually control performance, such as forced-on 60 FPS for all applications or disable thermal throttling (but that will increase heat!).
To access hidden settings:
- Activate Developer Mode: Settings → About Phone → MIUI version (click 7 times).
- Go to Settings → Additional → For developers.
- Find the parameters: 🔄 "Background Limitation – Set No Limits for Games. 🎮 "Force 4x MSAA" — Improves graphics, but increases the load. ⚡ "Optimization MIUI" — Turn it off if you want manual control.
For devices on the Snapdragon 8 Gen 2/3, there’s an additional trick: turn on “High Performance” in the battery settings. This will turn off the power saving for the CPU, but reduce battery life by 15-20%.
How to turn on 120Hz for all applications?
5. Battery Optimization: How to Extend Your Lifetime
Fast battery drain on Xiaomi is often associated with aggressive MIUI optimization, which paradoxically increases consumption, such as constantly switching between 3G/4G/5G modes or scanning Wi-Fi/Bluetooth in the background.
To fix this:
- 📶 Turn off automatic network search: Settings → SIM-maps and mobile networks → Network search engine → Off.
- 🔄 Adaptive brightness: in Settings → Display. → Adaptive brightness disable "Automatic regulation" and set a fixed value.
- 🛑 Disable background activity for unnecessary applications (see Section 3).
- 🔋 Use the "Battery Super Mode" (Settings) → Battery → Battery modes, but note that it limits performance.
For devices with AMOLED-screens (e.g. Xiaomi) 13 Ultra or Redmi K60 Pro) turn on a dark theme and install a black wallpaper - this will reduce battery consumption on the 5-10%.
💡
The biggest battery consumption on Xiaomi is caused by: background scanning Wi-Fi/Bluetooth, automatic switching (3G↔4G↔5G) And non-optimized games, and disabling these features can extend the time you're up to. 20-30%.
6. Firmware update: when and how to do it
Regular updates to MIUI or HyperOS not only add new features, but also fix critical performance bugs. However, not all updates are useful — some firmware versions contain bugs that, on the contrary, slow down the system.
Safe Update Rules:
- 🔍 Check out the reviews about the new firmware on the forums (4PDA, XDA-Developers) before installation.
- 📥 Download the firmware only from official sources: Official website: MIUI Downloads for HyperOS: HyperOS Global
- 🔄 Make a backup copy through Settings → Additionally. → Backup and reset.
- ⚡ Charge your phone at least 60% before upgrading.
If the device gets worse after the upgrade, you can roll back to the previous version via Fastboot or Recovery. For specific model instructions, look at XDA-Developers.
What if the phone doesn’t turn on after the upgrade?
7. Advanced optimization: changing the parameters of the kernel (for experienced)
If standard methods don’t work, you can try changing the kernel settings using Magisk or Kernel Auditor, which is a risky method, but it gives a significant performance boost on older devices (such as the Redmi Note 9 Pro or Poco X3).
The main parameters for optimization:
| Parameter | Recommended value | The effect |
|---|---|---|
| vm.swappiness | 10-30 (default 60) | Reduces the use of swap files, reduces the lags |
| sched_util_clamp_min_rt_default | 512 | Improves responsiveness of UI |
| sched_migration_cost_ns | 500000 | Reduces the load on the cores when multitasking |
| gpu_max_clock | Depends on the model (e.g. 800 MHz for Adreno 618) | Increases FPS in games but increases heat |
Changes require root access and Magisk installed. Use modules like KernelSU or FrancoKernel for safe modification.
⚠️ Warning: Incorrect core settings can lead to bootloop ( looped reboot) or overheating.Before experimenting, create a full backup through TWRP!